1 or East 1) was the first human spaceflight. The Vostok 3KA spacecraft was launched on 12 April 1961, taking into space Yuri Gagarin, a cosmonaut from the Soviet Union. The Vostok 1 mission was the first time anyone had journeyed into outer space and the first time anyone had entered into orbit. The Vostok 1 was launched by the Soviet space program and supervised by the Soviet rocket scientist Sergey Korolyov. 1961 RPG-7 1961 Lawrencium Co-discovered at the Dubna Nuclear Research Institute and Lawrence Berkeley Laboratory 1961 Anti-ballistic missile by Pyotr Grushin 1961 Space food 1961 Space suit 1961 Tsar Bomb The most powerful weapon ever tested. The Tsar Bomba was a three-stage Teller–Ulam design hydrogen bomb with a yield of 50 to 58 megatons of TNT (210 to 240 PJ). This is equivalent to about 1,350–1,570 times the combined power of the bombs that destroyed Hiroshima and Nagasaki, 10 times the combined power of all the conventional explosives used in World War II, or one quarter of the estimated yield of the 1883 eruption of Krakatoa, and 10% of the combined yield of all nuclear tests to date. 1961 Platform screen doors Park Pobedy (Saint Petersburg Metro) 1961 Ekranoplan by Rostislav Alexeyev 1961 Mil Mi-8 The world's most-produced helicopter 1962 Detonation nanodiamond 1962 AVL tree datastructure 1962 3D holography by Yuri Denisyuk 1962 Modern stealth technology by Petr Ufimtsev 1963 KTM-5 The most produced tram in the world. 1963 Oxygen cocktail 1964 Rutherfordium 1964 Druzhba pipeline The longest oil pipeline system in the world. 1964 Plasma propulsion engine Pulsed plasma thruster 1964 Kardashyov scale 1965 Extra-vehicular activity 1965 Molniya orbit satellite 1965 Voitenko compressor 1965 Proton rocket The most used heavy lift launch system 1965 Air-augmented rocket by Boris Shavyrin 1966 Nobelium 1966 Lander spacecraft Luna 9 by Georgy Babakin 1966 Orbiter Luna 10 1966 Regional jet The Yakovlev Yak-40 was the world's first regional jet. 1966 Caspian Sea Monster The largest ekranoplan and the second largest fixed-wing aircraft by Rostislav Alexeyev 1966 Soyuz rocket According to the European Space Agency, the Soyuz launch vehicle is the most frequently used and most reliable launch vehicle in the world. 1966 Orbital module Soyuz spacecraft 1967 Space toilet Soyuz spacecraft 1967 Ostankino Tower 1967 The Motherland Calls 1967 Computer for operations with functions 1967 Automated space docking Kosmos 186 and Kosmos 188 1967 Venus lander Venera 4 1968 Dubnium 1968